Numbas
Developer Update
2021

Christian Lawson-Perfect, Newcastle University

Localisation

Albanian, Arabic, Chinese, Dutch, English, French, German, Hebrew, Indonesian, Italian, Japanese, Norwegian Bokmål, Polish, Portuguese, Spanish, Swedish, Turkish, Vietnamese

Increased use

935 more users (+37%)

~200 more institutions (+30%)

2,180 items published (+24%)

GeoGebra

Query GeoGebra in a marking algorithm

pos:
  value(app,"A")

mark:
  feedback("The point is at $"+latex(app,'A')+"$.");
  correctif(pos=target_position)

interpreted_answer:
  pos

Create a GeoGebra worksheet from JME

JSXGraph

Create a diagram with JessieCode

jessiecode(
  600,600,
  """
    A = point(-2,-2);
    B = point(2,-2);
    C = point(1,2);
  
    circumcenter = circumcenter(A,B,C) << name: "circumcenter" >>;
    circle(A,B,C) << strokeOpacity: 0.3 >>;
  
    side_a = segment(B,C) << visible: false >>;
    side_b = segment(A,C) << visible: false >>;
    side_c = segment(B,A) << visible: false >>;
  
    polygon(A,B,C);
    
    M_a = midpoint(B,C) << visible: false >>;
    M_b = midpoint(A,C) << visible: false >>;
    M_c = midpoint(B,A) << visible: false >>;
  
    median_a = line(A,M_a) << dash: 4, color: "gray", strokeOpacity: 0.3 >>;
    median_b = line(B,M_b) << dash: 4, color: "gray", strokeOpacity: 0.3 >>;
    median_c = line(C,M_c) << dash: 4, color: "gray", strokeOpacity: 0.3 >>;
    
    centroid = intersection(median_a,median_b) << name: "centroid" >>;
  
    p_a = perpendicular(side_a,A) << dash: 1, color: "gray", strokeOpacity: 0.3 >>;
    p_b = perpendicular(side_b,B) << dash: 1, color: "gray", strokeOpacity: 0.3 >>;
    p_c = perpendicular(side_c,C) << dash: 1, color: "gray", strokeOpacity: 0.3 >>;
  
    orthocenter = intersection(p_a,p_b) << name: "orthocenter" >>;
  
    euler_line = line(orthocenter, centroid);
  """,
  [
    "axis": false
  ]
)